Terminal for wristbands for watches



Feb. 12, 1952 F, JACCARlNO ETAL v2,585,326

TERMINAL FOR WRISTBANDS FOR WATCHES Filed Jan. 30, 1950 JNVENToRs.

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Patented Feb. 12, 1952 assent TERMINAL lFOR WRISTBANDS FOR WATCH-ES'Frederick Jaccarino, Stamford,

and Alfred Pinson, Riverside, Conn., assignors to Apex Accessories Co.,Inc., Greenwich, Conn.

Application January 30, 1950, Serial No. 141,269

3 Claims. l. Our invention relates to terminals for wrist bands for.watches and is an improvement over the structure disclosed in our patentapplication, Serial No. 113,988, iiled September 3, 1949, now Patent No;2,575,684.

The object. of the invention is to provide a terminal that can bepreassembled completely before securing it to the ends of the band.Another object f the invention is to provide a terminal kfor the end ofa Wristband for. watches in which the securing means. of the band to theterminal provides additionalg-uiding means for said terminal. l

Generally the ends of a wrist band for a watch case terminate in a tube,into which expanding pins are tted in accordance with the spread of thefacing arms of theA watch case. In consequence, it is necessary to stockwith expanding pins of diierent` lengths. Our object is to obviate thisnecessity and provide the ends of the band with expanding pins that willtake care of the variety of watch cases generally encountered in thetrade.

In the appended drawing forming part of this application, Figure 1 isenlarged eight times the 1 original size, while Figures 2 to 5 inclusiveare enlarged sixteen times the original size:

Figure 1 is a section on line I-I, Figure 2;

Figure 2 is a vertical section on line 2 2, Figure l;

Figure 3 is a similar section on line 3--3, Figure 1;

Figure 4 is an end elevation of the terminal; and

Figure 5 is an end elevation of the stem.

In Figure l the right side of the terminal is shown fully telescoped in,while the left side is fully out.

In the figures, I l is a tubular stem provided midway between the endsthereof with a hub l I having a peripheral annular groove I2, preferablyV-shaped in cross-section. A portion I3 of the outer, cylindricalperipheral surface of the stem IU to each side of the hub is of areduced diameter to form annular end collars I4 near each end of thestem. Each collar serves as a bearing for a corresponding sleeve I5capping the corresponding open end of the stem I ii. Each outer end ofthe sleeve I5 is closed by an end wall I6, from which extends outwardlya trunnion I7 for engaging a watch to be attached.

The stem I I? is preferably reinforced within its bore by a partition I5located under the hub II, and therefore `coplanar with it. The purposeof the partition is to add strength to the stem the ends of expansionsprings i9, each actuating a corresponding sleeve I5.

The telescoping movement of each sleeve I5 on the corresponding endcollar Ill by a corresponding spring I9, is limited by the engagement ofthe inwardly lipped end 25 of the sleeve I5 with the corresponding innerend of collar Ill. The lipped end ZI! of each sleeve provides additionalguiding for the sleeve on the reduced portion I3 of the stem It. Theinward movement of the sleeves is limited either by the engagement of awall I5V of a sleeve or by the side of the hub. with the proximatelipped end of theocrresponding sleeve. Y. y

The lipped ends 2S of the sleeves are turned inwardly after the sleevehas been mounted on a corresponding end of the stem I5 housing thereinthe spring.

The' unit so far described comprises thestem, the springs housedtherein, and the sleeves capping the ends of the stem that encloses thespring and which sleeves have theiry open ends lipped as described toprevent the unit from separating into parts. When it is desired toattach such a unit to the end of a wrist banda flat portion of the bandis then shaped into a drum or sleeve 2|. The drum is then centralizedwith the hub of the stern III, and a portion of the metal of the drumoverlying the groove is rolled into the V-groove I2 of the hub, therebyanchoring the drum of the band to the hub of the stem. The open ends ofthe drum are rolled inwardly to form end lips 22, which provideadditional guide for the corresponding sleeves I5 projectingtherethrough. These end lips 22 may be dispensed with, and the innerdrum surface may be used as a guide. From Figure l 'it will be seen thatthe drum 2l is shorter than the stem I 0, so that the end of the drumthrough which the sleeve I5 projects and in which end the sleeve I5bears is supported by the stem lil lying within the sleeves I5. Thusaccidental rocking of the drum on the hub is prevented when thetrunnions Il engage the arms of a wrist watch.

The partition I8 in the bore of the stem may be eliminated, and a singleexpansion spring may be used in lieu of the two shown in Figure 1 of thedrawing, in which case the end of the single spring will abut thecorresponding end wall l@ of the sleeves I5.

By providing a completely assembled terminal unit we are able to reducethe inventory stock of bands and terminals, as, in accordance with thedemand of the type of band required, the

same can be easily and quickly coupled with the terminals to besupplied; whereas, if the terminals were directly mounted on the end ofthe band, the bands for which the demand decreases would overload thestock.

lAlthough the drawings show the parts of the terminal of cylindricalcross-section, the parts of the terminal are not limited to this type ofcrosssection, as the stem, the sleeves, and the drum could be of anyangular cross-section corresponding to the type, form and constructionof the watch band for which the terminal is intended.

We claim:

1. A wrist band terminal comprising a tubular stem having a hub betweenthe ends thereof, a sleeve capping each end of the stem and mounted totelescope on the corresponding end, a spring housed in the stem and thesleeves for moving the sleeves on the stem away from the hub, said stemand sleeve having means limiting the telescopic movement of the sleeveson the stem in either direction, and a drum-shaped band end anchored tothe hub median of its ends, said drum engaging the outer periphery ofthe sleeves to form guiding means therefor in addition to the guidingmeans formed for the sleeves on the stem, said sleeves having trunnionson the outer ends thereof for engaging the arms of a wrist watch.

2. A wrist band terminal comprising a tubular stem having a hub betweenthe ends thereof, said stem having a reduced outer diameter between thehub and the ends to form end collars thereon, a sleeve capping each endof the stem and bearing on the corresponding collar, the end of thesleeve proximate to the hub being lipped inwardly on to thecorresponding reduced part of the stem, a spring housed in the stem andsleeves for moving the sleeves away from the hub, said lipped end ofeach sleeve adopted to engage the corresponding collar end to preventthe separation of the stem and the sleeves, and a drum end of a wristband anchored to the hub between the ends of said drum, said drumproviding guiding means for the outer periphery of the sleeves to theproximity of the inner collar ends of the stem within the sleeves, eachof said sleeves having a trunnion on the outer end for engaging the armsof a Wrist watch.

3. A wrist band terminal comprising a tubular stem having a hub betweenthe ends thereof, said stem having a reduced outer diameter between thehub and the ends of the stem to form end collars on the stem, a sleevecapping each end of the stem and bearing on the corresponding collar,the ends of the sleeve proximate to the hub being lipped inwardly on tothe reduced part of the stem, said stem having a partition within thebore thereof coplanar with the hub, a spring to each side of thepartition within the stem engaging the corresponding sleeve for normallymoving the sleeve away from the hub, said lipped end of each sleeveadopted to engage the corresponding collar end to prevent the separationof the stem and the sleeves, and a drum-shaped end of a band anchored tothe hub of the stem median of its ends, said drum having lipped ends toform bearings for the corresponding outer periphery of the sleeveengaged therein, the lipped end of said drum extending beyond the innercollar end of the stem within the sleeves, said sleeves having trunnionson the outer end for engaging the arms of a wrist watch.

FREDERICK JACCARINO. ALFRED PINSON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

